Olefinic metathesis in the presence of phenolic compounds

US20060211905A1Inactive Publication Date: 2006-09-21SASOL TECH UK
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
SASOL TECH UK
Publication Date
2006-09-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

According to the present invention there is provided a metathesis reaction between at least two olefinic compounds which are the same or different, each olefinic compound comprising a non-cyclic olefin or a compound which includes a non-cyclic olefinic moiety. The metathesis reaction is carried out in the presence of a Grubbs first generation catalyst and is characterised therein that it is carried out in the presence of a phenolic compound in the form of a phenol or a substituted phenol, which substituted phenol includes at least one hydroxyl and at least one further moiety other than H and OH attached to an arene ring.
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Description

FIELD OF THE INVENTION

[0001] This invention relates to the enhancement of a metathesis reaction between at least two olefinic compounds which are the same or different. BACKGROUND ART

[0002] There is considerable interest regarding the formation of carbon-carbon bonds via olefin metathesis. The quest for highly active olefin metathesis catalysts has prompted considerable research efforts to develop olefin metathesis systems capable of tolerating a variety of functional groups. Ruthenium-based catalysts in particular have proven to be useful in catalysing olefin metathesis reactions, including cross metathesis (CM), ring-closing metathesis (RCM) and ring-opening metathesis polymerisation (ROMP) reactions.

[0003] Olefin metathesis refers to the metal-catalysed redistribution of carbon-carbon double bonds. CM can be described as a metathesis reaction between two non-cyclic olefins, which may be the same or different, for example:

[0004] Where the olefins are the same, the reaction is...

Claims

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